Without having access to a machine that old I can only guess at what's wrong, unfortunately.

The only thing that comes to mind is the change to backbuffer handling I did in mS 4.6: the engine now uses a fake backbuffer to ensure pixel-perfect output, and your 7300 may not be able to do render-to-texture at all. In that case Allegro is probably emulating it in software, hence the slowdown. If that's indeed the case, then there's not much I can do--using Surfaces in miniSphere would be slow for you too, even under 4.5.

I know this topic started out with a GetVersion question... We got in to talking about the video display between the Sphere and miniSphere. Which would still be on topic about the different versions. I thought you might like to see just what miniSphere 4.8 does on my dev machine...

With miniSphere 4.5, the graphics were very much like Sphere 1.5. Very smooth with no issues. With miniSphere 4.8 the graphics became very slow and choppy. @Fat Cerberus thought it might be because of my video card.

With miniSphere 4.5, the graphics were very much like Sphere 1.5. Very smooth with no issues. With miniSphere 4.8 the graphics became very slow and choppy. @Fat Cerberus thought it might be because of my video card.

I can't work out what's wrong in the picture you've posted. Not sure if you're showing a bug or something else.

I can't find an actual production year for the desktop but from what I can gather, similar models were produced in 2010. If that is when this machine is from then I am developing on a 7 year old machine. Considering the machine I was using before this one was from 2003... Not the newest tech, I know. I try to stay updated but new hardware isn't really cheap.